A brutish investment banker was ordered today to pay his ex-wife $500,000 for repeatedly abusing her during their tumultuous courtship and brief marriage.

The jury verdict against Jason Meyers awarded Myriam Allam the entire $200,000 she sought for pain and suffering, and an extra $300,000 to punish Meyers for his beastly behavior.

Allam, 32, nodded and smiled as the decision was announced in Manhattan federal court after about two hours of deliberations, while Meyers, 45, frowned across the room.

“We view this as a vindication of the rights of women caught in abusive relationships, and are pleased that the jury saw through the defendant’s smokescreens,” said Robert Tolchin, one of Allam’s lawyers.

“The amount of punitive damages shows that this jury believed that society can no longer tolerate domestic violence and abuse.”

Meyers was found liable for assault, battery and intentional infliction of emotional distress.

An allegation that he also swiped a ring from Allam and sold it to pay off “personal debts” was withdrawn midway through the three-day trial.

Meyers declined comment and sprinted away from the courthouse in a bid to avoid being photographed, but defense lawyer Steven Altman said he was disappointed with the verdict and predicted it would get tossed.

Allam, a French national, testified that she fell in love with Meyers at first sight when they met at a 2007 event in Geneva, Switzerland, but that he later flew into rages and assaulted her, once dragging her through a broken window at his Long Island home.

Allam’s suit also accused Meyers of forcing her into kinky and “demeaning” sex acts, but she didn’t detail any of them on the stand.